if1001.github.io

IF1001 - Programação para Dispositivos Móveis - 2020.1

Semana 5 - Background Processing

Objetivo

O objetivo desta semana é compreender conceitos importantes relacionados ao conceito de background threads em Android, em particular a noção de Main/UI Thread, a importância de rodar tarefas longas em background threads e como gerenciar Threads diretamente e via coroutines.

Ao fim da semana, você deve ser capaz de responder às seguintes perguntas:

• Quais são as tarefas de responsabilidade da Main/UI Thread em Android?
• Por qual razão não é possível atualizar a UI fora da Main/UI Thread?
• O que torna coroutines uma solução mais “barata” do que usar threads diretamente?

Código escrito durante a aula

• BackgroundProcessing App

Tutoriais recomendados para complementar aprendizagem

• Use Kotlin Coroutines in your Android App
• Kotlin Coroutines Tutorial for Android: Getting Started

Leitura Obrigatória

• Guide to background processing
• Kotlin coroutines on Android

Material complementar

• Threads
  • Running Android tasks in background threads
  • Communicate with the UI thread
  • Threading in Android - A detailed walkthrough on Android threading
  • Understanding Activity.runOnUiThread()
  • ThreadPoster: Explicit and Unit Testable Multi-Threading in Android
  • Difference between the main thread and UI thread
• Coroutines
  • Use coroutines in common Android use cases
  • Coroutines Guide - Kotlin docs
  • Mastering Kotlin Coroutines In Android - Step By Step Guide
  • Kotlin Coroutines in Android Reference Guide
  • Kotlin Coroutines And Threading Fundamentals
  • Kotlin Coroutines in Complex Features
  • A Bottom-Up View of Kotlin Coroutines
• Concorrência
  • Notes on structured concurrency, or: Go statement considered harmful
• Vídeos
  • Explained - Android UI thread/main thread
  • Main Thread vs Background Thread - Developing Android Apps
  • Understand Kotlin Coroutines on Android (Google I/O’19)
  • Kotlin Coroutines 101 - Android Conference Talks
  • Android Coroutines: How to manage async tasks in Kotlin
  • Kotlin Coroutines
  • KotlinConf 2019: Coroutines! Gotta catch ‘em all! by Florina Muntenescu & Manuel Vivo
  • Kotlin Coroutines: Explore what are coroutines in kotlin. Threads vs. Coroutines
  • COROUTINES IN KOTLIN 1.3 ► 4 concepts you MUST KNOW
  • Kotlin Coroutines Beginner Example (Android)
  • Kotlin Coroutines playlist
• Podcasts
  • AndroIdiots Podcast 7 : Unmasking Kotlin Coroutines
  • AndroIdiots Podcast 16: Android Process LifeCycle
  • Talking Kotlin: Coroutines with Roman Elizarov
  • Coroutines in Kotlin with Filip Babić – Podcast S10 E04